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1、IntegrativeZoology2012;••:••–••doi:10.1111/j.1749-4877.2012.00300.x1ORIGINALARTICLE1223344556Locomotionbehaviorofcaovitgibbon(Nomascusnasutus)living6778inkarstforestinBangliangNatureReserve,Guangxi,China899101011111212PengfeiFAN,MatthewB.SCOTT,HanlanFEIandChangyongMA131314Ins
2、tituteofEastern-HimalayaBiodiversityResearch,DaliUniversity,Dali,China14151516161717181819Abstract19202021Thecaovitgibbonisacriticallyendangeredspecies.Onlyapproximately110individualsremainindegrad-2122edkarstforestalongtheChina–Vietnamborder.Karstforestisunusualgibbonhabitat
3、.Currently,thecanopy2223heightofcaovitgibbonhabitatisapproximately10m.Researchonthelocomotorbehaviorofgibbonsliving2324inthisparticularforesttypemightprovideimportantinsightintolocomotorstabilityandvariabilityofgib-2425bons.Weused5minscansamplestorecordthelocomotionmode,suppo
4、rtuseandcanopystrataofgibbonsin25263groupsfor2096hbetweenJanuary2008andDecember2009.Althoughcaovitgibbonhabitathasalower2627canopyincomparisontothatofotherforestsinhabitedbygibbons,caovitgibbonsdisplayedasimilaroverall2728locomotorpatterntoothergibbonspecies(Symphalangussynda
5、ctylus,HylobateslarandHylobatesagilis)in2829whichbrachiationdominatetheirlocomotorbehavior.Caovitgibbonsspentmostoftheirtimetravellingonin-2930clinedbranches(2–10cm)inthemiddlestratumthroughtheforestcanopy.Adultfemalesappeartomoreoften3031employsafermodesoflocomotion(bridging
6、moreoftenandbrachiationless),whileadultmaleschooserisk-3132iermodes(leapingmoreandclimbingless).Asgibbonsincreasedinbodyweight,astheygrewfrominfantto3233adult,theytendedtouselargersupports.ThisresearchdocumentedthatlocomotorbehaviorinHylobatidaeis3334stronglydeterminedbyanato
7、micalcharacters,butcaovitgibbonsalsoshowtheabilitytousevarioussupports,3435enablingthemtosurviveinkarstforest.353636Keywords:adaptation,caovitgibbon,karstforest,locomotion,Nomascusnasutus37373838393940404141INTRODUCTIONChatani2003).Knowledgeoflocomotorbehaviorin4242primatesof
8、fersrevealinginsightintothepatternsof43Primatesexhibitmorediverseloc